Inoue 2008

Methods	Case‐control study within a population‐based cohort study in Japan
Participants	63,257 cohort participants 380 cases, 662 controls
Interventions	N/A
Outcomes	Incidence Adjusted for age, year of recruitment, dialect group, level of education, black tea intake, BMI, age when period became regular, number of live births
Cancer type & time of follow‐up	Breast cancer (time of follow‐up unclear)
Sponsor	Not declared
Notes	Green tea consumption: none or < weekly OR = 1.00 weekly to < daily OR = 0.65 (95% CI, 0.45 to 0.94) daily OR = 1.00 (95% CI, 0.82 to 1.22) p = 0.41